The quantitation of how much time constitutes short and recent varies by disease and by context, but the core denotation of acute is always qualitatively in contrast with chronic, which denotes long-lasting disease (for example, in acute leukemia and chronic leukemia).
View full size image. Thomas Edison is usually credited with the invention of the light bulb, but the famous American inventor wasn't the only one who contributed to the development of this revolutionary technology.
History has credited Thomas Edison with the invention of the light bulb, but fewer people know about Lewis Latimerâs innovations toward its development. Until Latimerâs process for making carbon filament, Edisonâs light bulbs would only burn for a few minutes. Latimerâs filament burned for several hours.